/* 
 * Khombole Professional Theme
 * Colors extracted from logo: Blue (#1e3a8a), Green (#059669), Yellow (#FDEF42)
 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --khombole-blue: #1e3a8a;
    --khombole-green: #059669;
    --khombole-yellow: #FDEF42;
    --khombole-light-blue: #dbeafe;
    --khombole-light-green: #dcfce7;
    --khombole-light-yellow: #fef3c7;
    --khombole-dark: #1f2937;
    --khombole-gray: #6b7280;
    --khombole-light-gray: #f8fafc;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--khombole-light-gray) 0%, #e2e8f0 100%);
    color: var(--khombole-dark);
    line-height: 1.6;
    min-height: 100vh;
}

/* Header Styles */
.khombole-header {
    background: linear-gradient(135deg, var(--khombole-blue) 0%, var(--khombole-green) 100%);
    color: white;
    padding: 2rem 0;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.khombole-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.khombole-header .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 1;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-logo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-md);
}

.header-text h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.header-text p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
}

.header-nav {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 500;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Main Content */
.khombole-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Cards */
.khombole-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(30, 58, 138, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.khombole-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--khombole-blue), var(--khombole-green));
}

.khombole-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-header {
    margin-bottom: 2rem;
    text-align: center;
}

.card-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--khombole-dark);
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--khombole-blue), var(--khombole-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-subtitle {
    font-size: 1.125rem;
    color: var(--khombole-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Forms */
.khombole-form {
    display: grid;
    gap: 2rem;
}

.form-section {
    padding-bottom: 2rem;
    border-bottom: 2px solid #f1f5f9;
}

.form-section:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--khombole-dark);
}

.section-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
}

.section-icon.blue { background: var(--khombole-blue); }
.section-icon.green { background: var(--khombole-green); }
.section-icon.yellow { background: #f59e0b; color: var(--khombole-dark); }

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-label {
    font-weight: 600;
    color: var(--khombole-dark);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-input, .form-select, .form-textarea {
    padding: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--khombole-blue);
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
    transform: translateY(-1px);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.file-input-wrapper {
    position: relative;
    display: inline-block;
    width: 100%;
}

.file-input {
    width: 100%;
    padding: 1rem;
    border: 2px dashed #cbd5e1;
    border-radius: 12px;
    background: #f8fafc;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.file-input:hover {
    border-color: var(--khombole-blue);
    background: var(--khombole-light-blue);
}

.file-input input[type="file"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

/* Buttons */
.khombole-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.khombole-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.khombole-btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--khombole-blue), var(--khombole-green));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--khombole-gray);
    color: white;
}

.btn-secondary:hover {
    background: #4b5563;
    transform: translateY(-2px);
}

/* Alerts */
.khombole-alert {
    padding: 1rem 1.5rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
}

.alert-success {
    background: var(--khombole-light-green);
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.alert-info {
    background: var(--khombole-light-blue);
    color: var(--khombole-blue);
    border: 1px solid #93c5fd;
}

/* Feature Cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid rgba(30, 58, 138, 0.1);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

.feature-icon.blue { background: linear-gradient(135deg, var(--khombole-blue), #3b82f6); }
.feature-icon.green { background: linear-gradient(135deg, var(--khombole-green), #10b981); }
.feature-icon.yellow { background: linear-gradient(135deg, #f59e0b, var(--khombole-yellow)); color: var(--khombole-dark); }

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--khombole-dark);
    margin-bottom: 1rem;
}

.feature-description {
    color: var(--khombole-gray);
    line-height: 1.6;
}

/* Footer */
.khombole-footer {
    background: var(--khombole-dark);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.footer-section h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-section p {
    color: #d1d5db;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-section ul li a:hover {
    color: white;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-logo img {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
}

.footer-contact {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: #9ca3af;
}

.developer-card {
    background-color: #374151;
    border-radius: 0.75rem;
    padding: 1.5rem;
    border: 1px solid #4b5563;
}

.developer-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.developer-avatar {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(to right, var(--khombole-green), var(--khombole-yellow));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.developer-details h5 {
    font-weight: 600;
    color: white;
    margin: 0;
}

.developer-details p {
    font-size: 0.875rem;
    color: #9ca3af;
    margin: 0;
}

.portfolio-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(to right, var(--khombole-green), #ca8a04);
    color: white;
    border-radius: 0.75rem;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.portfolio-link:hover {
    background: linear-gradient(to right, #047857, #a16207);
    transform: translateY(-1px);
}

.footer-copyright {
    border-top: 1px solid #4b5563;
    margin-top: 2rem;
    padding-top: 1.5rem;
    text-align: center;
}

.footer-copyright p {
    color: #9ca3af;
    font-size: 0.875rem;
    margin: 0.25rem 0;
}

.footer-copyright a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-copyright a:hover {
    color: white;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in-delay {
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .header-text h1 {
        font-size: 1.75rem;
    }
    
    .khombole-main {
        padding: 1rem;
    }
    
    .card-title {
        font-size: 2rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .khombole-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .khombole-card {
        padding: 1.5rem;
    }
    
    .header-text h1 {
        font-size: 1.5rem;
    }
    
    .card-title {
        font-size: 1.75rem;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

.rounded { border-radius: 0.375rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }